Kinematic Effects of Newly Designed Knee-Ankle-Foot Orthosis With Oil Damper Unit on Gait in People With Hemiparesis

• 발행기관: 한국전문물리치료학회
• 저자명: Hyung-ki Park Tack-hoon Kim Houng-sik Choi Jung-suk Roh Heon-seock Cynn Jong-man Kim
• 간행물 정보: 『한국전문물리치료학회지』한국전문물리치료학회지 제20권 제1호, 64~73쪽, 전체 10쪽
• 주제분류: 의약학 > 의학일반
• 파일형태: PDF
• 발행일자: 2013.01.31

영문 초록

The purposes of this study were to develop a new orthosis controlling ankle and knee joint motion during the gait cycle and to identify the effects of the newly designed orthosis on gait kinematics and tempospatial parameters, including coordination of the extremities in stroke patients. Fifteen individuals who had sustained a stroke, onset was 16 months, participated in this study. Before application of the measurement equipment the subjects were accustomed to walking on the ankle-foot orthosis (AFO) or stance control knee with knee flexion assisted-oil damper ankle-foot orthosis (SCKAFO) for 5 minutes. Fifteen patients were investigated for 45 days with a 3-day interval between sessions. Measurements were walking in fifteen stroke with hemiparesis on the 3D motion analysis system. Comparison of AFO and SCKAFO are gait pattern. The difference between the AFO and SCKAFO conditions was significant in the gait velocity, step length of the right affected side, stance time of both legs, step-length asymmetry ratio, single-support-time asymmetry ratio, ∅-thigh angle and ∅-shank angle in the mid swing (p<.001). Using a SCKAFO in stroke patients has shown similar to normal walking speeds can be attained for walking efficiency and is therefore desirable. In this study, the support time of the affected leg with the SCKAFO was longer than with the AFO and the asymmetry ratio of single support time decreased by more than with the AFO. This indicates that the SCKAFO was effective for improving gait symmetry, single-support-time symmetry. This may be due to the decrease of gait asymmetry. Thus, the newly designed SCKAFO may be useful for promoting gait performance by improving the coordination of the extremity and decreasing gait asymmetry in chronic stroke patients.

목차

Abstract

Introduction

Methods

Results

Discussion

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References

키워드

Gait asymmetry Gait performance Stance control knee with knee flexion assisted-oil damper ankle-foot orthosis